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Vibration characteristics of composite reinforced cylindrical shells sandwiched with co-cured damping films
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Yuesong ZHOU1, Xingshuai SUN2, Sen LIANG2, Jiali KONG1, Minghui ZHENG1, Changsheng ZHENG3
Journal of Mechanical Strength | 2025, 47(5) : 29 - 37
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Journal of Mechanical Strength | 2025, 47(5): 29-37
• Vibration·Noise·Monitoring·Diagnosis •
Vibration characteristics of composite reinforced cylindrical shells sandwiched with co-cured damping films
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Yuesong ZHOU1, Xingshuai SUN2, Sen LIANG2, Jiali KONG1, Minghui ZHENG1, Changsheng ZHENG3
Affiliations
  • 1.School of Mechanical Engineering, Shandong Huayu University of Technology, Dezhou 253000, China
  • 2.School of Mechanical and Automotive Engineering, Qingdao University of Technology, Qingdao 266520, China
  • 3.School of Intelligent Manufacturing, Weifang University of Science and Technology, Weifang 262700, China
Published: 2025-05-15 doi: 10.16579/j.issn.1001.9669.2025.05.004
Outline
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In order to study the dynamic behavior of stiffened cylindrical shells with composite material sandwiched by co-cured damping films under the clamped boundary condition, the specimens of stiffened cylindrical shell with composite material sandwiched by co-cured damping films were prepared, and the dynamic modal test platform was set up. The fundamental frequency, damping ratio and modal shapes of stiffened cylindrical shell specimens were solved, and the accuracy of finite element model was verified. The influence of geometric parameters on structural vibration characteristics was further discussed by the numerical simulation method. The results show that, the fundamental frequency, damping ratio and modal shape of the structure will change abruptly when the height of stiffeners changes, and there is a suitable height value before the abrupt change to make the whole structure consider both damping and stiffness requirements; when the thickness of composite materials is constant, the fundamental frequency of the whole structure decreases gradually and the damping ratio increases gradually with the increase of the damping thickness or damping layer number of single layer; for the stiffened cylindrical shell of single layer damping composite materials, the closer the damping layer is to the inner skin, the higher the stiffness is, and vice versa, the damping capacity is better.

Co-cured damping film embedded composite  /  Reinforced cylindrical shell  /  Dynamic behavior  /  Modal test  /  Numerical simulation
Yuesong ZHOU, Xingshuai SUN, Sen LIANG, Jiali KONG, Minghui ZHENG, Changsheng ZHENG. Vibration characteristics of composite reinforced cylindrical shells sandwiched with co-cured damping films[J]. Journal of Mechanical Strength, 2025 , 47 (5) : 29 -37 . DOI: 10.16579/j.issn.1001.9669.2025.05.004
Funding
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  • National Natural Science Foundation of China(52075280)
  • Natural Science Foundation of Shandong Province(ZR2023QE115)
  • Intelligent Manufacturing Engineering Laboratory-Shandong Higher Education Characteristic Labordatory
Appendix
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Year 2025 volume 47 Issue 5
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Article Info
doi: 10.16579/j.issn.1001.9669.2025.05.004
  • Receive Date：2024-10-17
  • Online Date：2026-03-19
  • Published：2025-05-15
Article Data
Affiliations
History
  • Received：2024-10-17
  • Revised：2024-11-26
Funding
National Natural Science Foundation of China(52075280)
Natural Science Foundation of Shandong Province(ZR2023QE115)
Intelligent Manufacturing Engineering Laboratory-Shandong Higher Education Characteristic Labordatory
Affiliations
    1.School of Mechanical Engineering, Shandong Huayu University of Technology, Dezhou 253000, China
    2.School of Mechanical and Automotive Engineering, Qingdao University of Technology, Qingdao 266520, China
    3.School of Intelligent Manufacturing, Weifang University of Science and Technology, Weifang 262700, China

Corresponding:

ZHENG Changsheng, E-mail：
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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